2026 ICD-10-CM Diagnosis Code N90.89Other specified noninflammatory disorders of vulva and perineum

ICD-10-CM CodesN00–N99N80-N98N90

ICD-10-CM N90.89
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N90.89 is a billable ICD-10-CM diagnosis code for other specified noninflammatory disorders of vulva and perineum. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 742 through 743, 760 through 761. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified female genital disorders.

Code Identity

ICD-10-CM Code
N90.89
Billable Status
Yes — Valid for Submission
Code Describes
Other specified noninflammatory disorders of vulva and perineum
Short Description
Oth noninflammatory disorders of vulva and perineum
Parent Code
Other specified noninflammatory disorders of vulva and perineum

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN80-N98Noninflammatory disorders of female genital tract
CategoryN90Other noninflammatory disorders of vulva and perineum
This CodeN90.89Other specified noninflammatory disorders of vulva and perineum

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acquired fusion of labia
  • Acquired labial adhesion
  • Caruncle of labium
  • Clitoral erection
  • Congenital labial adhesion
  • Deposition on vulva
  • Disorder of prepuce of clitoris
  • Dryness of vulva
  • Edema of clitoris
  • Edema of prepuce of clitoris
  • Edema of vulva
  • Enlargement of labia
  • Excessive smegma
  • Excessive smegma on clitoris
  • Fibrosis of perineum affecting pregnancy
  • Finding of color of vulva
  • Finding of quantity of smegma
  • Finding of smegma
  • Finding of tone of female perineum
  • Fusion of vulva
  • Hematoma of female perineum
  • Hematoma of vulva
  • Hyperpigmentation of vulva
  • Hypertrophy of clitoral prepuce
  • Hypertrophy of clitoris
  • Hypertrophy of labia
  • Hypertrophy of vulva
  • Irritation of clitoris
  • Labial adhesions
  • Lesion of clitoris
  • Lesion of vulva
  • Lymphedema of genitalia
  • Lymphedema of vulva
  • Mass of female perineum
  • Mass of vulva
  • Old episiotomy scarring
  • Old laceration of vulva
  • Old laceration or scarring of vulva
  • Old scarring of vulva
  • Orifice of Bartholin's duct not seen
  • Pain in female perineum
  • Painful clitoral erection
  • Phimosis clitoridis
  • Polyp of labia
  • Polyp of vulva
  • Posterior fourchette scarring
  • Purpura of female perineum
  • Purpura of vulva
  • Recessed vulva
  • Rigid perineum
  • Rigid perineum in pregnancy, childbirth, and/or puerperium
  • Scaling of female perineum
  • Scaling of vulva
  • Scarring of vulva
  • Sensory disturbance of vulva
  • Swelling of female genital structure
  • Swelling of vulva
  • Vulva absent
  • Vulva granulation
  • Vulva not seen
  • Vulval irritation
  • Vulval pain
  • Vulvovaginal scarring due to ritual circumcision
  • White deposit on vulva

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Adhesions of vulva
  • Hypertrophy of clitoris

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Adherent
      • labia (minora)
    • Adhesions, adhesive(postinfective)
      • clitoris
    • Adhesions, adhesive(postinfective)
      • postpartal, old (vulva or perineum)
    • Adhesions, adhesive(postinfective)
      • vulva
    • Caruncle(inflamed)
      • labium (majus) (minus)
    • Concretion
      • clitoris
    • Deformity
      • clitoris (congenital)
        • acquired
    • Deformity
      • labium (majus) (minus) (congenital)
        • acquired
    • Deformity
      • vulva (congenital)
        • acquired
    • Disease, diseased
      • vulva (noninflammatory)
        • specified NEC
    • Edema, edematous(infectious) (pitting) (toxic)
      • vulva (acute)
    • Elephantiasis(nonfilarial)
      • vulva (nonfilarial)
    • Hematoma(traumatic) (skin surface intact)
      • labia (nontraumatic) (nonobstetric)
    • Hematoma(traumatic) (skin surface intact)
      • vulva (nontraumatic) (nonobstetric)
    • Hemorrhage, hemorrhagic(concealed)
      • vulva
    • Hydrocele(spermatic cord) (testis) (tunica vaginalis)
      • vulva
    • Hypertrophy, hypertrophic
      • clitoris (cirrhotic)
    • Hypertrophy, hypertrophic
      • prepuce (congenital)
        • female
    • Laceration
      • vulva
        • nonpuerperal, nontraumatic
    • Laceration
      • vulva
        • old (postpartal)
    • Lesion(s) (nontraumatic)
      • vulva
    • Necrosis, necrotic(ischemic)
      • perineum
    • Necrosis, necrotic(ischemic)
      • vulva
    • Redundant, redundancy
      • clitoris
    • Retention
      • smegma, clitoris
    • Rupture, ruptured
      • perineum (nonobstetric) (nontraumatic)
    • Scar, scarring
      • labia
    • Scar, scarring
      • vulva
    • Sclerosis, sclerotic
      • corpus cavernosum
        • female
    • Tag(hypertrophied skin) (infected)
      • perineal
    • Tag(hypertrophied skin) (infected)
      • vulva
    • Vitiligo
      • vulva

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR GEN025
Other specified female genital disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Vulvar Disorders

The vulva is the external part of a woman's genitals. Some problems you can have with the vulvar area include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert N90.89 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
624.2 Hypertrophy of clitoris
Approximate The match is approximate rather than exact.
ICD-9-CM
624.8 Noninflam dis vulva NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N90.89Overview

Is N90.89 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified noninflammatory disorders of vulva and perineum on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does N90.89 group to?

When other specified noninflammatory disorders of vulva and perineum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of N90.89?

Under the General Equivalence Mappings, other specified noninflammatory disorders of vulva and perineum converts to ICD-9-CM 624.2 (hypertrophy of clitoris) and 624.8 (noninflam dis vulva NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.